Tuning attachment for pipe-organ pipes



Nav. 13, 1928. 1,691,674

S. SILVER'SA :TUNING ATTACHMENT FOR PIPE ORGAN PIPES Filed April 30, 1926 av /o "www llllvllllllll INVENTOR.

New dilemma.

ATTORNEY.4

Patented' Nov. n 13, 1192s.', i' f fumraojjsr ysILAs'sIIA71111s` or DETROIT-MICHIGAN.

TUNING ATTACHMENT FOR PIPE-loRGAN Piras.

VAp'plieanqninea Aprneo, 192e. serial. No; 105,660.

' Myinvention relates toa new and useful improvement in a tuning attachment for organ pipes, and has for its object the provision of a device adapted for attachment on an organ pipe, whereby thelpipe may be tuned to produce the desired tune or note when sounded.

' It is an object of the present invention to provide l. ak tuning device for organ pipes whereby the pipe may be tunedand the tuning devic'eilocked in thel desired position of `adjustment so that the tuning is a permanent one. 1 y

Another object of the invention is the provision of a tuningdevice of this class whichv is'simple in structure, economical of manufacture, highly ehcient in use, easily operated, and quickly and easily locked in positions of various adjustment, and released for adjustment to other positions.

Another object of the invention is the provision of a slidable plate mountedon the pipe'for opening and closing by degrees a slot formed in the ipe. f

yOther objects w11l appear hereinafter.

The invention consists in lthe combination and arrangement of parts hereinafter v described and claimed.

lso

v in which The invention will be best understood from akreference to the accompanyin vdrawings which form a part of this speci cation and Fig. iis a. Side elevationaiview of the inventlon showin it applied to an organ pipe. Fig. 2 isa a entary sectional view taken on substantially line 2-2of Fi 1. ,j Fig. 3 is a sectional view taken onsu stantially line 3-3 of Fig. 2.'l

As shown in the drawings the invention is adapted for use with an organ pipe 7 having the tapered ory inlet end 8 and provided with the peripheral opening' 9, all of which structure is well' known.y Formed inthe tube 7 adjacent the upper end, is a slot 10 at each side of which extending longitudinally of the tube 7 are guide strips 11 and 12 which serve as guides for the tuning plate 13 in itslongi-7 tudinal movement relativelyy to the tube 7. By moving the plate 13 theopen slot 10 may be adjusted to various sizes thus effectingk the pitch and the quality of tone of the pipe nr tube and affording a means for tuning the tube to produce `the desired tone. y n

Mounted upon and projecting outwardly from the tunin plate 13 is a bracket 14 in y which is rotata lymounted akreduced portion 18 of a'threaded stem 15, having the head 16 positioned atone side of the bracket 14 and the 'head 18 positioned at the opposite side, Vsaid'bracket 14 having/an opening 19 therethrough for receiving the reducedy portion 18. Mounted upon and projecting outwardly from the tube 7 is a bracket 20 through which the threaded stem 15 is threaded, a suitable set screw 21 being threaded into the bracket 20 an-d adapted to engage the stem 15 yfor locking it against rotatable movement in the bracket 20. A suitable knob 22 is ymounted, upon one end of the threaded stern 15 for efectlng' rotation thereof. It is evident that by rotating the stem 15 the tun` ing plate 13 will be moved longitudinally of the Vtube 7 so that the open portion of the slot 10 may be adjusted, the movement of the plate 13 downwardly towardk the tapered end 8 of the tube uncovering a larger portion of the slot'and a movement in the opposite direction serving to effect a closing of the slot to reduce the open portion. f

When the tuning plate 13 has been moved to the desired position the set screw 21 may be threaded into engagement with the stem 15 so that the tuning plate isr locked in its adjusted position and its undue movement therefrom prevented.

It is evident that a permanent tuning of the tube becomes possible with a device of this kind and that the tuning may be effected f positivel accurately, and to a very fine degree so t at the device in addition to aifording a permanent tuning also renders an eilicient mechanism for tuning the pipe quite n accurately.

While I have illustrated and described the ypreferred form of structure, I do not wish to limit myself to the precise form of structure l shown but desire to avail myself of such varifations and modifications as come within the scope ofthe appended claims.

Having thus described my invention what I claim as new and desireto secure by Letters Patent is: i

1. In combinationwith a pipe organ having an Vopening formed thereinya pair of yguide members extending along said opening at opposite sides; a tuning plate slidablebetween said yguide members for opening and closing said opening; a threaded member for moving said plate relatively to said opening; and means for locking said threaded member against operation.-v

2. In combination with an organ pipe having an opening formed therein, a pair of guide members extending longitudinally of Seid pipe on the periphery thereof, one -at each side of said opening; a. closure for Said opening slidebly mounted between said guide members; a bracket lprojecting outwardly from said closure; a threaded stem projected th rough seid bracket; e heed on said stem eninging one side of said bracket; a head on said stein engaging the opposite side of seid bracket, the portion of saidstem between seid brackets being reduced and projected through seid bracket, rotatable therein; a bracket mounted on said pipe, said bracket having :l threaded openingr formed therein for 1the re cepti-on of :t threaded portion of seid stem` the rotation of said stem in seid threaded opening' effecting a movement of Suid plate longitudinally of Said pipe and relatively to Seid opening; and a set screw threaded into seid bracket Jfor engaging said stem and locking the seme againstrotatable movement.

In testimony whereof I have signed the foregoing.

SILAS SILVERS. 

